Protein Packed
The one of these membrane components that regulates how fluid the membrane is: channel protein, pump protein, carrier protein, cholesterol, phospholipid, carbohydrate
What is cholesterol?
The term for ways substances move across membranes without cell energy
What is passive transport?
When a cell and its environment has the same concentration of solutes
What is isotonic?
Name the main molecule in cell membranes and draw 4 to show how they orient themselves in a membrane.
What is a phospholipid?
(Draw them tails together.)
The body keeping conditions within a safe range
What is homeostasis?
They extend through the membrane to receive messages or move substances through the membrane
What are integral proteins?
Ways to get substances across membranes that require the cell's ATP
What is Active Transport?
when a cell's environment has more solutes than the cell does
What is hypertonic?
Show how small hydrophobic molecules cross a cell membrane and name the process they use.
Diffusion
(Show a membrane with molecules crossing down the concentration gradient.)
A change in conditions that causes systems to react
What is a stimulus?
They use ATP to concentrate sodium ions outside of cells
What are pump proteins?
Three types of passive transport
What are osmosis, diffusion, and facilitated diffusion?
When a cell's environment contains less solutes than it does and the way water would move
What is hypotonic and into the cell?
Show how water usually moves across a cell membrane.
Osmosis
(Show water molecules going down its the concentration gradient using channel proteins.)
The part of the body that notices a stimulus
What is the receptor?
Two purposes for peripheral proteins
What are identify the cell AND link into the cytoskeleton to move the membrane?
Three types of active transport
What are active transport, endocytosis and exocytosis?
One way a cell can move water one way when the water naturally moves the other way
What is: Pump more solutes (or sugar) to that side?
OR Use pinocytosis? OR Use a contractile vacuole?
Show how small hydrophilic substances get concentrated on one side of a cell membrane.
Active Transport
(Draw a pump protein using energy to move molecules up a concentration gradient.)
A part of the body that receives information about a stimulus and sends messages telling what to do, give an example organ and the stimulus it regulates
What is a control center?
brain-body temp., kidney-blood pressure, pancreas-blood sugar
The reason channel and carrier proteins are needed in cell membranes
What is
to move hydrophilic substances through the hydrophobic area of the phospholipid bilayer?
The steps to a cell making a protein to secrete (release)
What is 1. Ribosomes make the protein in the rough er. 2. The er buds off a vacuole and sends the protein to the golgi. 3. The golgi finishes the protein and buds off another vacuole. 4. The vacuole moves to the cell membrane and fuses with it to release the protein.
Why IV fluids are usually near 1% solutes, using the terms osmosis, hypertonic and hypotonic
What is
To prevent cells from exploding if it is hypotonic and osmosis puts too much water into cells AND prevent losing water to hypertonic solutions?
Show how very large particles get through a cell membrane, including at least two other organelles involved. Label your drawing.
Name and draw one:
(Exocytosis: Show a vacuole + golgi or rough er)
(Endocytosis: Show a vacuole and lysosome or receptors)
What we call the part of the body that acts to restore homeostasis, give two examples of those and what they do
What is an effector?
Ex: heart (beats faster), iris (dilates), liver (stores or releases glucose), bones (store or release calcium)